JPH0136598Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial field of application and its purpose The invention relates to a heat insulating material whose main body is inorganic fiber mat such as glass wool or rock wool, and which is covered with an outer covering material such as plastic film. However, due to the nature of the heat insulating material body made of inorganic fiber mat, the bulk density is low, so a generally used shape has the disadvantage that its volume is very large. For this reason, items that are long in the longitudinal direction are folded in half, then stacked and compressed to reduce the volume and pack. By maintaining the adhesive strength of the selvage, which is the mating surface of the edge of the outer covering material sheet, so that the amount can be reduced in a short time, and by creating a breathable shape that allows for easy air processing such as degassing. The object of the present invention is to provide a heat insulating material made of inorganic fiber pine covered with an outer covering sheet, which improves the workability of packing and packaging, and reduces packaging and transportation costs.

Conventional technology Conventionally, inorganic fiber mats such as glass wool and rock wool have a prickly irritation characteristic of their fibers. When sealing is performed by closely contacting the edges of the covering material to create a shape in which the above-mentioned pine does not come off and the mating surface does not come off, use adhesive or impulse to maintain the adhesive strength of the sealed portion. Use a sealer etc. to create a continuous linear adhesive surface,
Otherwise, the shape of the bonding surface is often in the form of intermittent dots, and for this reason, the edges of the bonding surface may become undulating due to the influence of the adhesive or heat, and due to heat shrinkage or changes in thickness of the outer covering material sheet. It is difficult to easily obtain a flat bonding surface, and the thickness of the outer covering material sheet becomes thinner due to pressure heating at the bonded area, which causes cracks to form at the thinner areas. Furthermore, the continuous linear adhesive surface had no air permeability.
Therefore, due to the influence of the internal air covered by the outer covering sheet, it is impossible to degas it in a short time when folding it in half and compressing it as described above, so it is difficult to handle when packing and packing. There were some drawbacks that were a hindrance. Therefore, there is a need for a structure in which the inorganic fiber mat is covered with a covering material and can be reliably and easily compressed and packed in a short period of time.

Structure of the present invention As described in the claims of the utility model registration, the present invention has a heat insulating material body made of inorganic fiber mat such as glass wool or rock wool covered with upper and lower outer covering sheets. The edges of the covering sheets are overlapped at the lower end of the wood end surface in the longitudinal direction of the insulation material, and are glued together in multiple rows running in the longitudinal direction of the insulation material using a group of individually independent adhesive points in the form of dots or lines. With this structure, the insulation material covered with the outer covering material sheet does not have the irritating feel peculiar to inorganic fibers, and the air in the main body of the insulation material and the air inside the covering material are At the lower end of the wooden end surface in the direction, the gap between the bonded parts of multiple rows of dot-shaped or linear bonded points is made to allow circulation to the outside, and when the above-mentioned heat insulating material is compressed, Air inside the jacket material is easily dissipated to the outside. Even if commonly used insulation materials with a longitudinal length of approximately 2,740 mm are folded in half for handling, stacked in multiple layers, and then compressed and packed, the outer sheathing material will not rupture. The air inside is dissipated to the outside through the gap between the bonded parts, and the insulation material is compressed and loaded in multiple layers.
The shape allows for easy handling of large volume insulation materials.

Embodiments and their Effects Embodiments of the present invention will be described below with reference to FIGS. 1 to 3.

Figure 1 shows the heat insulating material of the present invention in a perspective view, and Figure 2
The figure shows the central part of the insulation material in the longitudinal direction, which is folded in half, and FIG. The adhesive part is shown.

As shown in Fig. 1, a lower outer covering material sheet 3 made of thermoplastic synthetic resin is placed on the lower surface of a mat-shaped heat insulating material body 2 made of glass wool, rock wool, etc.
is attached to the main body 2 with an adhesive layer 4, and the sheet 3 extends outward from both left and right edges of the main body 2, and its edges are overlapped and folded inward to form ears 9. An upper covering material sheet 1 also made of thermoplastic synthetic resin is adhered to the upper surface of the heat insulating material main body 2 with an adhesive layer 5, and the sheet 1 is attached to the upper surface of the heat insulating material main body 2.
is bent along both side surfaces 10 so as to cover the main body 2 downward from both left and right edges,
The wood end surface 6 is bent outward at both side edges of the lower end, and the end edges 11 are extended, and are interposed between the overlapping surfaces forming the ears 9 of the lower outer covering material sheet 3 described above. A sealing edge 8 is formed in the longitudinal direction as a joint with the outer covering material sheets 1 and 3, and a third seal is formed along the longitudinal direction on both sides of the main body by using an ultrasonic sewing machine, sandwiching the upper and lower surfaces of the sealing edge 8. As shown in the figure, they are bonded together using adhesive portions 7 that are each independent and linear. Therefore, the above-mentioned heat insulating material main body 2 has upper and lower surfaces and both side surfaces, except for both front and rear end surfaces 13, covered with outer covering material sheets 1 and 3, and as shown in FIG. Multiple rows of bonding points 14 configured with bonding portions 7 and gaps 12
Since the sealing edge 8, which is the joint between the outer sheathing sheets 1 and 3, is formed by It is formed so that it is dissipated by the gaps 12 between the group of wire attachment points 14 formed by the individually independent linear adhesive portions 7 .

The shape of the linear bonded parts 7 formed by the ultrasonic sewing machine shown in FIG. There is no problem even if
Furthermore, the bonding is not limited to using an ultrasonic sewing machine, and other methods may be used.

This example shows the case where an ultrasonic sewing machine is used, and since a group of adhesion points 14 are formed by individually independent linear adhesion parts 7 and the adhesion is intermittent, the outer cover material The sheets 1 and 3 are not affected by heat shrinkage, etc., and can be used even if the thicknesses of the sheets 1 and 3 are considerably different, and the adhesive surface has a wave-like shape as in the conventional case. No, the first
The shape of the ear portion 9 shown in the figure is extremely flat, there is almost no decrease in strength, and since the adhesive is bonded by multiple rows of bonding points 14, the bonded portion of one column is torn. Even in this case, there is little risk that the outer covering material sheets 1 and 3 will peel off.
As the outer covering material sheet, a plastic film made of synthetic resin such as polyethylene, vinyl chloride, polypropylene, etc., which can be heat-bonded, or a plastic film whose surface is aluminum-deposited, or paper laminated with a thermoplastic film, etc. can be easily used.

An example of use will be described below.

As shown in Figure 2, the above-mentioned pine-shaped heat insulating material has commonly used dimensions, such as a width of 450 mm, a thickness of 50 to 150 mm, and a length of 2740 mm. This causes inconvenience in handling, so it is necessary to fold them in half, stack them in multiple layers, and then compress and pack them in order to minimize the volume. Even if they are stacked in multiple layers and compressed, the compressed internal air will not be dissipated through the gaps 12 of the individual dot-shaped or linear bonded parts 7 shown in FIGS. 2 and 3, as described above. That will happen. Therefore, even if several dozen sheets are stacked, the volume is quite small and compression packaging is possible, so it is also possible to configure a packaging line and automate the packing process such as compression packaging in a predetermined short cycle using a compression packaging machine. It becomes possible.

Furthermore, the existence of the gap 12 in the bonding point group 14 described above means that
Contrary to what was mentioned above, when unpacking, it encourages air to flow into the pine-shaped insulation material, which can shorten the time it takes for the pine-shaped insulation material to return to its pre-compression shape. .

Effects of the present invention Therefore, in the present invention, the main body of the insulation material is made of inorganic fiber mat such as glass wool or rock wool.
The sealing edge, which is the overlapping joint of the upper and lower outer sheathing sheets and the edges and ears, is formed by multiple rows of adhesive points made up of individually independent linear adhesive parts and gaps. By being formed so as to be glued together, it is possible to use a thermoplastic film, sheet, or paper laminated with a thermoplastic film, etc. for the outer covering material, and the thickness of the upper and lower outer covering sheets, etc. is equivalent. It is possible to bond even if the material is different, the shape of the ear is extremely flat, it does not have the undulating shape of the conventional material, it prevents heat shrinkage, and it can tolerate changes in thickness. In addition, since the bonding is performed by the multiple rows of bonding points mentioned above, and the bonding area is bonded intermittently, cracks in the film caused by conventional heat bonding, etc. are prevented, and the strength is improved. There is almost no decrease in adhesiveness, and since the bonding is performed in multiple rows, even if one row is torn, the outer covering material sheet will not peel off, and the adhesiveness will be improved.

In addition, since the adhesive is bonded by a group of adhesive points having adhesive parts and voids as described above, even if the insulation material is folded in half, stacked in multiple layers, and compressed, the air inside the coated material will still leak to the outside. The heat dissipates, the volume is small, and it is easy to handle, making it easy to compress and pack, and when unpacking, air can circulate, which has the effect of shortening the time it takes for the heat insulating material to return to its original shape. Therefore, it is possible to improve the workability of packing, packing, unpacking, etc., and to have the effect of reducing packing transportation costs, working costs, etc.

[Brief explanation of the drawing]

Fig. 1 is a schematic perspective view of a heat insulating material showing an embodiment of the present invention, Fig. 2 is a schematic enlarged perspective view of the heat insulating material shown in Fig. 1 but folded in half, and Fig.
FIG. 3 is a partially schematic enlarged view of the adhesive portion shown in FIGS. 1: Upper outer covering material sheet, 2: Insulating material body, 3:
Lower outer covering material sheet, 6: Wood end surface, 14: Adhesion point group.

Claims (1)

[Scope of utility model registration request] The main body of the insulation material made of inorganic fiber pine such as glass wool or rock wool is covered with upper and lower outer covering sheets, and the edges of the upper and lower outer covering sheets overlap at the lower end of the wood end surface in the longitudinal direction of the insulation material. is,
A heat insulating material characterized in that a plurality of rows of the heat insulating material running in the longitudinal direction are bonded together by a group of dot-like or linear bonding points.